If you are in search of some one-of-a-kind, oversized artwork, then you should definitely check out Philip Williams Posters, located in Tribeca since 1973. This incredible block-long Manhattan shop houses a collection of thousands of vintage posters from around the world. While it's best to visit in person to browse the extensive selection, they also have an online database that you can search based on price, color, origin, size, and category.

Large-scale posters line the walls of the space, which extends an entire city block between Chambers Street and Warren Street. They also sell a wide selection of smaller prints, vintage magazines, and other advertising memorabilia.

With over 100,000 posters to choose from, it's hard to know where to start! But thankfully, the online database makes it easy to narrow down the choices. You can search the collection based on categories such as travel, women, and propaganda. To give you an idea of pricing, here are a few gems I picked out, which range from $300 to $2200. But the extremely rare posters can sell for tens of thousands of dollars!